This research aims to accelerate the restoration of the
bone cavity resulting from the surgical removal of the dental cysts
through fill the cavity with Palatelet-Rish Plasma.
The aim of this study is to evaluate the healing after
apicectomy by using two different techniques. And to evaluate the
effect of MTA as a retrograde filling material and also the Er:YAG
laser as a tool for resecting the apex, and the influence of them in
the healing.